package main

import (
	"fmt"
	"github.com/shirou/gopsutil/mem"
	"time"
	"github.com/shirou/gopsutil/cpu"
	"github.com/shirou/gopsutil/disk"
	"github.com/shirou/gopsutil/host"
	"github.com/shirou/gopsutil/net"
)

func collet() {
	v, _ := mem.VirtualMemory()
	c, _ := cpu.Info()
	cc, _ := cpu.Percent(time.Second, false)
	d, _ := disk.Usage("/")
	n, _ := host.Info()
	nv, _ := net.IOCounters(true)
	boottime, _ := host.BootTime()
	btime := time.Unix(int64(boottime), 0).Format("2006-01-02 15:04:05")

	fmt.Printf("        Mem       : %v MB  Free: %v MB Used:%v Usage:%f%%\n", v.Total/1024/1024, v.Available/1024/1024, v.Used/1024/1024, v.UsedPercent)
	if len(c) > 1 {
		for _, sub_cpu := range c {
			modelname := sub_cpu.ModelName
			cores := sub_cpu.Cores
			fmt.Printf("        CPU       : %v   %v cores \n", modelname, cores)
		}
	} else {
		sub_cpu := c[0]
		modelname := sub_cpu.ModelName
		cores := sub_cpu.Cores
		fmt.Printf("        CPU       : %v   %v cores \n", modelname, cores)

	}
	fmt.Printf("        Network: %v bytes / %v bytes\n", nv[0].BytesRecv, nv[0].BytesSent)
	fmt.Printf("        SystemBoot:%v\n", btime)
	fmt.Printf("        CPU Used    : used %f%% \n", cc[0])
	fmt.Printf("        HD        : %v GB  Free: %v GB Usage:%f%%\n", d.Total/1024/1024/1024, d.Free/1024/1024/1024, d.UsedPercent)
	fmt.Printf("        OS        : %v(%v)   %v  \n", n.Platform, n.PlatformFamily, n.PlatformVersion)
	fmt.Printf("        Hostname  : %v  \n", n.Hostname)
}

func main() {

	for ; ; {

		//v, _ := mem.VirtualMemory()

		// almost every return value is a struct
		//fmt.Printf("Total: %v, Free:%v, UsedPercent:%f\n", v.Total, v.Free, v.UsedPercent)

		// convert to JSON. String() is also implemented
		//fmt.Println(v)

		collet()

		time.Sleep(1000000000)

	}
}
